[PATCH 5.4 068/408] crypto: mediatek - Fix wrong return value in mtk_desc_ring_alloc()

Greg Kroah-Hartman
2020-10-27T14:33:35Z

From: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>

[ Upstream commit 8cbde6c6a6d2b1599ff90f932304aab7e32fce89 ]

In case of memory allocation failure, a negative error code should
be returned.

Fixes: 785e5c616c849 ("crypto: mediatek - Add crypto driver support for some MediaTek chips")
Cc: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/mediatek/mtk-platform.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/mediatek/mtk-platform.c b/drivers/crypto/mediatek/mtk-platform.c
index 7e3ad085b5bdd..ef4339e84d034 100644
--- a/drivers/crypto/mediatek/mtk-platform.c
+++ b/drivers/crypto/mediatek/mtk-platform.c
@@ -442,7 +442,7 @@ static void mtk_desc_dma_free(struct mtk_cryp *cryp)
static int mtk_desc_ring_alloc(struct mtk_cryp *cryp)
{
struct mtk_ring **ring = cryp->ring;
- int i, err = ENOMEM;
+ int i;

for (i = 0; i < MTK_RING_MAX; i++) {
ring[i] = kzalloc(sizeof(**ring), GFP_KERNEL);
@@ -476,7 +476,7 @@ static int mtk_desc_ring_alloc(struct mtk_cryp *cryp)
ring[i]->cmd_base, ring[i]->cmd_dma);
kfree(ring[i]);
}
- return err;
+ return -ENOMEM;
}

static int mtk_crypto_probe(struct platform_device *pdev)
--
2.25.1